Mill for pressing cane



(No Model.)

J. MURPHY.

MILL POR PRBSSING GANE, (sw.

Patented Aug. 3, 1886.

N PETERSv Pmwummpm. msm-5m. n. cv

UNiTnn Smarts harem trice.

JEREMIAH MURPHY, OF BROOKLYN, NEV YORK.

MILL FOR PRESSING CANE, 80C.

SPECIFICATION forming part of Letters Patent No. 346,493, dated Aug-ast 3, 1886.

Application tiled September 18, 1835.

o CLZZ wfwm t may concer/e:

Beit known that l, JEREMMH MUnruY, ot' Brooklyn, in Kings county and State ot' New York, have invented a cert-ain new and useful Improvement in Mills for Pressing Cane and Like Substances, ot' which the following is a specification.

My improvementrelates particularly to mills for use in treating sugar cane and like substances. It has been regarded as desirable for some time past to make the rolls ot'such mills of considerable length. ln order to at't'ord them suficientstrength, when long, they have been made large in diameter. Although a gain was expected from the eXtra length, the expectation was not realized. The rolls have always sprung more or less, and in that way have become impaired in eiiectiveness. The increase in the diameter ofthe rolls has given them a more extended bearing-surface on the cane, and their force being therefore distributed over more surface has resulted in a smaller percentageof yield, and also has had atendency to convert the bag-asse into a spongy condition, adapted to retain much juice. The increase of power necessary to the operation was expended to no useful purpose, and hence was wasted.

The object of myimprovement iste produce a mill in which long rolls may be used without any of the objections above enumerated.

In the accompanying drawings, Figure ll4 is a plan ot' a mill embodying my improvement, certain parts being broken away the better to eXhibit the construction. Fig. is a vertical section of the mill, taken at the plane of the broken line xx, Fig. l. Fig. 3 is a front view ofthe rolls ofthe mill.

Similar letters of reference designate corresponding parts in all the gures.

A A'iAi' designate three rolls, two ol' which, A A, are shown as arranged in thc sa me horizontal plane, and the other ot' which, A, is arranged a little higher and opposite the space between the rolls A A. These rolls A AfA severally comprise sections a c, journals c, intermediate ol' the sections, and journals a4 cf at the outer ends of the sections. All the component parts of each roll are rigidly secured together, )referably by making them integral. The journals ai c* a, are received in bearings Serial No. 177,-ISEI. (No model.)

| supported by standards or pillow-blocks B3B4 The journals a5 of the rolls have gearwheels O' C2 Oia't'tixed to them. Through the intermeshing ot' these gear-wheels the rolls are caused to rotate in unison.

D designates an endless carrier, whereby cane designed to be subjected to the action ot' the rolls will be fed forward. This carrier consists ot" a number of slats made ot' wood or other suitable material secured at the ends to chains or bands. The chains or bands and the ends of the slats ot` this carrier travel along guides D, arranged on frames D, which are erected on posts D and pass around wheels D3,`atiiXed to a shaft, D,journaled in the frames Di. The carrier will in the same way pass around other wheels like the wheels D, and preferably also over guide -pulleys D5, where necessary. Motion may be imparted to the carrier by a chain or belt passing over an appropriately-formed wheel on the journal a4 ot the roll A and a similar wheel on the shaft D. The carrier conveys the cane up an ineline and then delivers it onto achute, E, that descends at an incline to a point opposite the adjacent surfaces ot' the rolls AA2. The cane passing between the rolls A A2 drops onto a guide, F, and thenceit passes between the rolls A2 Ai. Leaving the rolls A2 A, the bagasse or waste cane-stalks drop onto a downwardlyinclined chute, G, and slide thence onto an endless carrier, H, whereby they will be conveyed away. The carrier H consists of slats fast-cned at the ends to chains or bands, and passes along guides around wheels and over guide-pulleys in a well-known manner. The carrier D, whereby the cane to be treated is ted toward the rolls, corresponds in width to the distance between the outer ends of the sections ot' the rolls A A2 A, hence it feeds cane to the rolls throughout the entire length of their sections. Overthc ascending part of the carrier D a guide, I, is arranged. It corresponds approximately in position and width with the standard B3, by which the journals a ofthe rolls are supported. This guide I also extends down over the chute E and close to the standard B. I may make this guide of metaland support it at one end from the standard Bi and at the other end by any suitable means. The guidedirects the cane conveyed ICO by the carrier D to the sections a a of the rolls A A AH, and prevents it from passing over the st-andard B3. It will be understood that the single carrier D and chute E feed the cane to all the sections ofthe rolls A A2.

By my improvement l am enabled to use rolls ot' any desirable length without making them obiectionably large in diameter. l can thus obtain the best results with long rolls and secure all advantages that result from performing a great amount of work by one set of rolls-as, for instance, economy in the first cost of the machinery as compared with two or more separate machines performing the same amount of work, and saving of power required for the work. My improvement, in fact, enables me to reduce the rolls diametric ally to a minimum, owingto the bearings which I provide for them intermediate of their ends. This also enables me to arrange the rolls A A3 with their axes closer together than otherwise would be possible, and thus to reduce the distance the bagasse is obliged to travel while under pressure, This last point alone effects a considerable saving in power.

There is a saving of power, ofcourse, due to employing` a single carrier to feed the cane to the rolls.

What I claim as my invention, and desire to secure by Letters Patent, is

1. The combination, With rolls severally comprising a number of longitudinal sections, of bearings for the rolls intermediate of their ends, 'a chute for conducting material to be treated to the rolls, and a guide extending over the chute to the intermediate bearings for the rolls, substantially as specified.

2. The combination, with rolls severally comprising a number of sections` of bearings for the rolls intermediate of their ends, a chute for conducting material to be treated to the rolls, a carrier for conveying the material to the chute, andv a guide extending over the chute and carrier to the said intermediate bearings for the rolls. substantially asspecied.

JEREM [AH MURPHY.

Witnesses:

J As. R. BOWEN, W. G. LIPsEY. 

